So why did the professor kneel down on the road?

He was told to kneel down on the floor and to close his eyes.

But I gathered them all round me and knelt down on the ice.

It isn't often you see a chairman of a car company kneeling down on a motor show stand.

Jack knelt down on the floor and pulled her into his arms.

There he knelt down to splash water on his face.

He stood up quickly, and then knelt down on the ground by the side of the unseen thing.

I knelt down on the floor so that my face was level with his.

She knelt down on one knee and put it to his lips.

Peter knelt down on the floor, trying to pick up the broken pieces of glass.